EP3054278A1 - Dispositif pour soulever au moins une roue ou un pneu de véhicule, avec détecteur de l'état d'usure de ce dernier - Google Patents

Dispositif pour soulever au moins une roue ou un pneu de véhicule, avec détecteur de l'état d'usure de ce dernier Download PDF

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Publication number
EP3054278A1
EP3054278A1 EP16153865.7A EP16153865A EP3054278A1 EP 3054278 A1 EP3054278 A1 EP 3054278A1 EP 16153865 A EP16153865 A EP 16153865A EP 3054278 A1 EP3054278 A1 EP 3054278A1
Authority
EP
European Patent Office
Prior art keywords
tyre
wheel
lifting device
laser scanner
wear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16153865.7A
Other languages
German (de)
English (en)
Other versions
EP3054278B1 (fr
Inventor
Francesco Braghiroli
Lillo Gucciardino
Paolo Sotgiu
Marco Tralli
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Snap On Equipment SRL
Original Assignee
Snap On Equipment SRL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Snap On Equipment SRL filed Critical Snap On Equipment SRL
Publication of EP3054278A1 publication Critical patent/EP3054278A1/fr
Application granted granted Critical
Publication of EP3054278B1 publication Critical patent/EP3054278B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C25/00—Apparatus or tools adapted for mounting, removing or inspecting tyres
    • B60C25/01—Apparatus or tools adapted for mounting, removing or inspecting tyres for removing tyres from or mounting tyres on wheels
    • B60C25/05—Machines
    • B60C25/132—Machines for removing and mounting tyres
    • B60C25/135—Machines for removing and mounting tyres having a tyre support or a tool, movable along wheel axis
    • B60C25/138—Machines for removing and mounting tyres having a tyre support or a tool, movable along wheel axis with rotary motion of tool or tyre support
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C25/00—Apparatus or tools adapted for mounting, removing or inspecting tyres
    • B60C25/01—Apparatus or tools adapted for mounting, removing or inspecting tyres for removing tyres from or mounting tyres on wheels
    • B60C25/05—Machines
    • B60C25/0521—Handling of rim or tyre, e.g. lifting and positioning devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C25/00—Apparatus or tools adapted for mounting, removing or inspecting tyres
    • B60C25/01—Apparatus or tools adapted for mounting, removing or inspecting tyres for removing tyres from or mounting tyres on wheels
    • B60C25/05—Machines
    • B60C25/053—Support of wheel parts during machine operation
    • B60C25/0545—Support of wheel parts during machine operation with rotary motion of tool or tyre support, e.g. turntables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C25/00—Apparatus or tools adapted for mounting, removing or inspecting tyres
    • B60C25/01—Apparatus or tools adapted for mounting, removing or inspecting tyres for removing tyres from or mounting tyres on wheels
    • B60C25/05—Machines
    • B60C25/0548—Machines equipped with sensing means, e.g. for positioning, measuring or controlling
    • B60C25/0554—Machines equipped with sensing means, e.g. for positioning, measuring or controlling optical, e.g. cameras
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M1/00—Testing static or dynamic balance of machines or structures
    • G01M1/02—Details of balancing machines or devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M1/00—Testing static or dynamic balance of machines or structures
    • G01M1/02—Details of balancing machines or devices
    • G01M1/04—Adaptation of bearing support assemblies for receiving the body to be tested
    • G01M1/045—Adaptation of bearing support assemblies for receiving the body to be tested the body being a vehicle wheel
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/007—Wheeled or endless-tracked vehicles
    • G01M17/013—Wheels
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/007—Wheeled or endless-tracked vehicles
    • G01M17/02—Tyres
    • G01M17/021—Tyre supporting devices, e.g. chucks
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/007—Wheeled or endless-tracked vehicles
    • G01M17/02—Tyres
    • G01M17/027—Tyres using light, e.g. infrared, ultraviolet or holographic techniques

Definitions

  • the present invention relates to a lifting device according to the preamble of the principal claim.
  • Lifting devices for vehicle wheels or for tyres have been known for some time. These devices are usually associated with tyre changing or balancing machines, or form parts of these. However, the term “lifting device” is intended to include any platform having a flat part on which the wheel or tyre moves (by rolling), regardless of whether the tyre is detached from a vehicle or associated therewith. A “lifting device” therefore also includes a vehicle lift having two parallel ramps on which a vehicle is positioned for lifting.
  • a feature common to every lifting device is that it has a platform which is movable relative to a surface on which the vehicle or the tyre changing or balancing machine is positioned.
  • a laser scanner such as a "Stripe of Light” (SOL) laser
  • SOL stripe of Light
  • a laser scanner is capable of determining in a precise way the geometry of the wheel (the rim and the tyre) and can provide a comprehensive diagnosis of the wheel, for example in order to detect possible defectiveness, ovalization, irregular wear, etc., in the tyre.
  • the data corresponding to a full revolution of the wheel must be acquired in order to provide a complete diagnosis of the tyre (or of its tread, for example). This can be done in only two ways: either by rotating the wheel or tyre, or by moving the device (if manual) around the whole circumference of the tyre.
  • US8171783 Other devices for diagnosing the wear of a tyre are described, for example, in US8171783 , US2012/0067115 , WO2014/094703 and WO2014/095142 , although these are fixed devices. All these devices substantially disclose one or more fixed laser scanners with respect to which a vehicle wheel moves.
  • US8171783 describes a unit having a configuration such that, during movement, the vehicle wheel bears against a corresponding scanner which thus records the wear of the tyre tread.
  • US2012/0067115 describes a method for determining the depth of tread of a tyre while it rotates on, or is placed on, a measuring station.
  • EP2113761 describes a balancing machine for balancing vehicle wheels, comprising a base frame supporting a rotating spindle placed at one side of a wheel support surface. This surface can be lifted to bring the wheel from a position close to a lower base to the position of this spindle. A wall rises from the base at one side of the movable support, means of reading the position of the wheel relative to the spindle being fixed to this wall. These reading means are an optical sensor of the laser type which can be used to determine when, as a result of the lifting of the support surface, the wheel placed on the latter has reached position such that the wheel can be slid on to the spindle.
  • the position of the wheel is determined by the interaction of the laser beam generated by the sensor with the profile of the tyre.
  • This prior art does not tackle the problem of determining the state of wear and/or the surface condition and/or the defectiveness of a tyre, but it does tackle the problem of automatically determining when a wheel to be subjected to balancing has been lifted from the ground so that it can easily be fitted on to the spindle of the balancing machine by an operator.
  • the laser beam emitted by the optical sensor described in EP2113761 does not read the state of the tyre, but solely detects the spatial position of the wheel relative to the rotating spindle.
  • the optical sensor generating the laser beam is placed remotely from the wheel support surface, on a wall placed at the side of this surface. This laser beam can interact with the wheel solely when the support surface has been lifted from the base, and it is only in this condition that the laser beam can strike the wheel and identify its position.
  • EP0982566 describes a method for aligning the wheels of a vehicle placed on suitable rotating devices, on the basis of the forces generated by the rolling of the aforesaid wheels on these devices. These rotating devices are associated with platforms of a vehicle lift and the vehicle wheels are positioned on these devices. By activating these devices, the alignment of the wheels is determined on the basis of suitable force sensors associated with the structure of each device.
  • the aforesaid sensor is capable of measuring a stress or a strain generated on the aforesaid structure by a wheel which is misaligned in its rolling motion on the platforms of the lift.
  • EP0982566 does not tackle the problem of determining the state of wear and/or the surface condition and/or the defectiveness of a tyre, but only that of the alignment of the wheels of a vehicle with said wheels kept mounted on the vehicle.
  • EP0982566 determines this alignment or misalignment by using, for each rotating device, a force sensor which detects the movement of relatively movable structural parts of this device.
  • This sensor (a load cell or the like) cannot be an optical sensor, since this sensor would not be capable of detecting the forces exerted between the relatively movable structural parts when a wheel in motion, whose alignment or misalignment is to be determined, is present on the device.
  • the object of the present invention is to allow the automatic detection of the state of wear and/or the condition and/or the defectiveness of a tyre simultaneously with the execution of other operations performed on the latter, such as the operation of mounting the tyre on the respective rim and detaching it therefrom, the balancing of a wheel, the correction of the attitude of the wheels of a vehicle, or others.
  • Another object is to carry out these detections when the normal lifting of the wheel or the tyre alone is performed for the execution of these operations, this lifting being capable (in the widest sense) of being carried out even when the wheel is still associated with the vehicle (for example, by means of ordinary vehicle lifts on which the vehicle is placed for the detachment of the wheel or for the checking of the attitude of the vehicle, for example by using alignment machines, or for other operations).
  • An object of the invention is therefore to provide a device for lifting at least one wheel of a vehicle, which can also be used, simultaneously or in combination with the lifting operations, to obtain data on the wear and/or the condition and/or the defectiveness of the tyre.
  • Another object is to provide a device of this type which can be used to obtain data on the wear and/or condition and/or defectiveness, which can be used by a tyre specialist for subsequent operations to be performed on the wheel.
  • a further object is to provide a device of this type which is capable of supplying said information on the wear and/or condition and/or defectiveness of the tyre directly to a tyre changing machine, to a balancer, to an alignment machine, or other.
  • Another object is to provide a device of this type which can be used to obtain data on the wear and/or condition and/or defectiveness of the tyre which can be, for example, presented to the driver of the vehicle to which the tyre belongs, preferably in the form of three-dimensional colour images of the tyre tread, as illustrated in EP2110656 and US7269997 .
  • a further object is to provide a device of this type which can be used to obtain data on the wear and/or condition and/or defectiveness of the tyre which can be stored for future comparison with uniform data in order to detect any problems in the tyre or in the aforesaid vehicle, for example in order to estimate the remaining mileage of the tyre, as illustrated in EP2141475 .
  • the tyre changing machine 1 comprises a column 4 associated with the usual components (indicated as a whole by 5) for separating a tyre 6 from a rim 7, the assembly of these two elements forming a wheel 8.
  • the machine 1 comprises a platform of the usual type with a rotating central pivot 9 for supporting the wheel 8 and a lifting device 10 for carrying this wheel from a surface P (on which the machine 1 rests) to an operating height such that the wheel can be placed on the pivot 9.
  • the device 10 comprises a platform 12, preferably (but not necessarily) equipped with a plurality of rollers 13 in a substantially flat part 12A of the platform, these rollers being placed orthogonally to the direction of movement of the wheel 8 on the surface P (arrow F in Figure 1 ), this movement being executed in order to place the wheel on the platform 12 of the machine 1.
  • the platform 12 is associated with an arm 15 capable of lifting the wheel until it is brought to the operating height.
  • a tyre changing operative rotates the wheel through 90° so that it bears on the platform with the pivot 9 (which is commonly horizontal).
  • the scope of the present invention also includes a machine 1 in which the operation of rotating the wheel is carried out automatically by the lifting device 10.
  • the lifting device 10 has a platform 12 whose width (measured parallel to the rollers 13) is such that it accommodates the whole tyre tread.
  • this platform supports a laser scanner 20 for detecting the geometry and/or the state of wear and/or the condition and/or the defectiveness of the tyre.
  • the scanner 20 is generally constructed by using known systems, for example point lasers, as described in EP1515129 , or preferably, but not necessarily, "stripe of light” (SOL) lasers, as described in EP2020594 for example, and is fastened to the platform and preferably placed in a direction orthogonal to that of the rolling of the wheel (arrow F) when the latter is placed on the aforesaid platform, so that it can "read” at least a portion of the tyre tread.
  • this scanner 20 is placed between two rollers 13, if these are provided.
  • the scanner 20 is configured so that it can "read” the whole width of the tyre tread; even more preferably, it can also "read” the lateral surfaces of the tyre, or at least a portion thereof.
  • the laser scanner 20 can acquire data corresponding to at least one rotary position of the wheel or of the tyre (that is to say, an arc of the tyre tread); preferably, the scanner can acquire data corresponding to a plurality of rotary positions of the wheel or tyre.
  • the laser scanner 20 is of a type known in the prior art, and will not be described further. It may be connected (by cable, or remotely, for example by Wi-Fi or other similar procedures) to a printer, to a data processing unit, or to the control unit of the machine 1.
  • a print-out on paper can be generated from the reading of the tread, providing information on the state of the tread, and possibly also indicating, if this state is not optimal, the need to replace the tyre or to perform other maintenance operations (such as attitude correction or the like).
  • the detected data can be processed (for example, by comparison with standard wear data or data previously detected on the same wheel, for example in order to estimate the remaining mileage of the tyre), so as to provide the tyre specialist with more detailed diagnostic information, such as the necessity of correcting the attitude of the vehicle, balancing the wheel, or similar operations.
  • the detected data can be stored in a database to allow comparison at the time of a subsequent operation performed by the tyre specialist on the wheel or related to the tyre manufacturer.
  • the detected data can also be used to actuate a particular operation of the machine itself.
  • the detected data could also be sent via a remote connection (via Wi-Fi or the internet, for example) to a portable electronic device such as a smartphone or tablet (preferably connected to the internet) to which the tyre specialist has access and with which he can contact the vehicle owner, in order to send the aforesaid data to the latter (by email, for example) together with any necessary advice concerning operations to be performed on the wheel or tyre (such as its replacement).
  • a remote connection via Wi-Fi or the internet, for example
  • a portable electronic device such as a smartphone or tablet (preferably connected to the internet) to which the tyre specialist has access and with which he can contact the vehicle owner, in order to send the aforesaid data to the latter (by email, for example) together with any necessary advice concerning operations to be performed on the wheel or tyre (such as its replacement).
  • the invention is applied to a balancing machine 2.
  • parts corresponding to, or described in relation to, Figure 1 are indicated by the same reference numerals.
  • the wheel is brought on to the support skid 12A of the platform 12 by movement as shown by the arrow F, and, after this platform has been lifted towards the operating height or level, is fitted on a rotating spindle 30 parallel to the platform.
  • the support skid 12A of the platform 12 is substantially V-shaped, in order to accommodate the vehicle wheel more satisfactorily.
  • this support skid 12A is horizontally slidable on the platform 12 from a lifting position near the end of the platform 12, on the right in Figure 2 , in other words distant from the balancing machine 2, to an operating position (not shown) at the opposite end of the platform 12, on the left in Figure 2 , in other words near the balancing machine 2.
  • the operation of the platform 12 and its interactions with the balancing machine 2 are described, for example, in ITBO2014A000183.
  • the wheel 8 (not shown in the figures) is then made to rotate about its central axis (coinciding with that of the spindle 30) so that the tests relating to the balancing machine can be conducted. During this rotation, the platform 12 is moved away from the wheel 8, but can be held, at least for a limited period, at a short distance from it.
  • the wheel 8 is rotated at low speed, for example at a speed in the range from 2 to 100 r.p.m., preferably from 5 to 50 r.p.m., or even more preferably from 10 to 30 r.p.m., for example 20 r.p.m., so that the laser scanner 20 associated with said platform reads the state of wear and/or the condition and/or the defectiveness of the tread or sidewalls of the tyre, along the whole circumference of the tyre.
  • these data can be used to determine the non-uniformity of the loaded wheel by load simulation, as illustrated, for example, in EP2587214 or EP2771643 .
  • the scanner 20 can read the data relating to the wear of the tyre while the platform 12 is still in a fully lowered position, while the wheel is made to roll on the skid 12A by an operator, by a procedure similar to that of the embodiment of Figure 1 .
  • the data acquired do not correspond to the whole circumference of the wheel or the tyre, but to at least one rotary position of the wheel or tyre, and preferably to a plurality of rotary positions of the wheel or tyre.
  • one or more further laser scanners can be associated with the structure of the machine 2 to additionally read the state of wear and/or the condition and/or the defectiveness of the sidewalls of the tyre. The data that have been read are then used and/or displayed as described above in relation to Figure 1 .
  • one or more laser scanners 20 are associated with the vehicle lifting device 40, as shown by way of example in Figure 3 .
  • each platform 41, 42 of this lift is associated with at least one laser scanner 20 (two in Figure 3 ) positioned transversely to the direction of movement of a vehicle (not shown) rising on this lift (arrow F in Figure 3 ).
  • each laser scanner 20 is connected (by an electrical or optical cable or the like, or remotely via Wi-Fi, for example) to the (ordinary) control unit of one of the machines of Figures 1 and 2 , or to an alignment machine or other devices for the maintenance of the wheels or the vehicle, or to a printer or other electronic devices for recording data in digital format.
  • each laser scanner 20 to the lift 1 (of an ordinary type) is simple, and requires minimal work on the platform 41, 42, to form apertures in the latter where the scanners are positioned.
EP16153865.7A 2015-02-09 2016-02-02 Dispositif pour soulever au moins une roue ou un pneu de véhicule, avec détecteur de l'état d'usure de ce dernier Active EP3054278B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI20150174 2015-02-09

Publications (2)

Publication Number Publication Date
EP3054278A1 true EP3054278A1 (fr) 2016-08-10
EP3054278B1 EP3054278B1 (fr) 2018-05-09

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Family Applications (1)

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EP16153865.7A Active EP3054278B1 (fr) 2015-02-09 2016-02-02 Dispositif pour soulever au moins une roue ou un pneu de véhicule, avec détecteur de l'état d'usure de ce dernier

Country Status (4)

Country Link
US (1) US10175146B2 (fr)
EP (1) EP3054278B1 (fr)
CN (1) CN105856985B (fr)
ES (1) ES2676497T3 (fr)

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US10520129B2 (en) * 2016-07-05 2019-12-31 Snap-On Equipment Srl A Unico Socio Machine body for a wheel servicing apparatus with display support unit
CN106383027B (zh) * 2016-08-29 2018-11-30 中航动力股份有限公司 一种棘轮离合器制动块在线状态检测方法
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US10954001B2 (en) 2017-02-23 2021-03-23 The Boeing Company Hanging clamped supports for aircraft
US10445873B2 (en) * 2017-02-23 2019-10-15 The Boeing Company Automated validation of condition of assembly
CN106996877A (zh) * 2017-05-24 2017-08-01 中信戴卡股份有限公司 四工位道路车辆车轮径向疲劳试验装置及方法
US11396150B2 (en) 2018-02-14 2022-07-26 Android Industries Llc Tire preparation for adhesive using laser ablation system and method
CN108731950B (zh) * 2018-04-08 2019-08-06 安徽江淮汽车集团股份有限公司 一种轮胎磨损测量台架
CN109297729A (zh) * 2018-11-22 2019-02-01 开平市新丽华电子有限公司 一种车轮耐性测试装置
CN110395225B (zh) * 2019-07-26 2024-04-30 河北万达轮胎有限公司 一种自动后充气修剪胎毛和测量轮胎外径的多功能设备
CN112539690A (zh) * 2020-12-14 2021-03-23 合肥市极点科技有限公司 一种基于双目的视觉轮胎磨损测量方法
CN113959740A (zh) * 2021-10-21 2022-01-21 李维富 一种汽车轮胎检测装置及其使用方法
CN114608470B (zh) * 2022-05-09 2022-07-22 山东玲珑轮胎股份有限公司 一种汽车轮胎磨损量检测装置

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US20160231203A1 (en) 2016-08-11
EP3054278B1 (fr) 2018-05-09
ES2676497T3 (es) 2018-07-20
US10175146B2 (en) 2019-01-08
CN105856985B (zh) 2019-07-26
CN105856985A (zh) 2016-08-17

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